Sundaram, Rajamurugan, Koji Matsumoto, Kohei Nagai, and Anupam Awasthi. “Visual Investigation Method and Structural Performance Evaluation for DEF Induced Damaged Indian Railway PC Sleepers”. Journal of Asian Concrete Federation 4, no. 2 (December 31, 2018): 103–115. Accessed April 2, 2026. https://jacf.sfulib3.publicknowledgeproject.org/index.php/jacf/article/view/90.